Alert archive / Alabama / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 36, NWS Birmingham, AL

April 29, 2016Pickens County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 29, 2016, 5:48 PM CDT for Pickens County, Alabama. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 29, 2016, 5:48 PM CDT (22:48 UTC)
Expired: Apr 29, 2016, 6:17 PM CDT
In force: 29 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Pickens County, AL

The radar

The Columbus AFB radar (KGWX), 60 km from the middle of the area, began a volume at 22:49 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 10.8 hours before the alert went out and 128 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 481 J/kg
Mixed-layer CIN: -167 J/kg
Mixed-layer LCL: 1110 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

897 
WUUS54 KBMX 292248
SVRBMX
ALC107-292330-
/O.NEW.KBMX.SV.W.0036.160429T2248Z-160429T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
548 PM CDT FRI APR 29 2016

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN PICKENS COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 630 PM CDT

* AT 548 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ETHELSVILLE...
  OR 8 MILES NORTH OF PICKENSVILLE...MOVING EAST AT 15 MPH.

  HAZARD...60 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  GORDO...REFORM...CARROLLTON...PICKENSVILLE...ETHELSVILLE...PINE GROVE...
  NORTH PICKENS AIRPORT...KIRK...OWENS AND MCSHAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3348 8828 3352 8792 3321 8788 3323 8831
TIME...MOT...LOC 2248Z 261DEG 15KT 3335 8824 

HAIL...1.25IN
WIND...60MPH
 
$$

32/DAVIS

1 follow-up statement

858 
WWUS54 KBMX 292317
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
617 PM CDT FRI APR 29 2016

ALC107-292327-
/O.CAN.KBMX.SV.W.0036.000000T0000Z-160429T2330Z/
PICKENS AL-
617 PM CDT FRI APR 29 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN PICKENS COUNTY IS
CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3348 8828 3352 8792 3321 8788 3323 8831
TIME...MOT...LOC 2312Z 261DEG 15KT 3357 8687 

$$

32/DAVIS

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 29, 6:04 AM CDT	Dense Fog Advisory	BMX	Autauga, Barbour, Bullock, Chambers, Dallas, Elmore and 7 more	3 hr
Apr 29, 3:45 PM CDT	Severe Thunderstorm Warning	BMX	Lamar	45 min
Apr 29, 4:23 PM CDT	Special Weather Statement	BMX	Fayette	67 min
Apr 29, 4:27 PM CDT	Special Weather Statement	BMX	Walker, Winston	63 min
Apr 29, 4:42 PM CDT	Special Weather Statement	BMX	Pickens	63 min
Apr 29, 5:02 PM CDT	Special Weather Statement	BMX	Tuscaloosa	43 min
Apr 29, 5:12 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Tuscaloosa	48 min
Apr 29, 5:27 PM CDT	Special Weather Statement	BMX	Walker	48 min
Apr 29, 5:42 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Walker	63 min
Apr 29, 5:46 PM CDT	Special Weather Statement	BMX	Blount	59 min
Apr 29, 5:54 PM CDT	Severe Thunderstorm Warning	BMX	Tuscaloosa	51 min
Apr 29, 6:14 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair, Shelby	46 min
Apr 29, 6:27 PM CDT	Special Weather Statement	BMX	Bibb	48 min
Apr 29, 6:29 PM CDT	Special Weather Statement	BMX	Pickens	46 min
Apr 29, 6:47 PM CDT	Special Weather Statement	BMX	Chilton, Coosa, Talladega	58 min
Apr 29, 6:50 PM CDT	Special Weather Statement	BMX	Hale	40 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2016 Every severe thunderstorm warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.